Pentel EnerGel Liquid Gel pen: unsurpassed quality and craftsmanship with the fusion of liquid and gel inks.Glide into the future of writing with smooth liquid gel ink. The best qualities of liquid ink and gel ink are blended into a super smooth formula and delivered via an exclusive ink/tip technology. Quicker drying and longer lasting than conventional gel ink.Intensely vivid ink dries quickly without smearing or blotting. Futuristic barrel accents indicate ink color. Acid-free.